Registration Dossier

Environmental fate & pathways

Biodegradation in water and sediment: simulation tests

Administrative data

Endpoint:
biodegradation in water and sediment: simulation tests
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
other: Prediction model
Title:
Bio-degradation in water and sediment by EPI (Estimation Programs Interface) Suite
Author:
Sustainability Support Service (Europe) AB - estimated
Year:
2017
Bibliographic source:
Estimation Programs Interface Suite™ United States Environmental Protection Agency, Washington, DC, USA. version 4.1

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Modeling database
Principles of method if other than guideline:
Fugacity Model by EPI Suite estimation database
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium 2-(2,3-dihydro-1,3-dioxo-1H-inden-2-yl)quinoline-6-sulphonate
EC Number:
284-392-0
EC Name:
Sodium 2-(2,3-dihydro-1,3-dioxo-1H-inden-2-yl)quinoline-6-sulphonate
Cas Number:
84864-68-6
Molecular formula:
C18H11NO5S.Na
IUPAC Name:
sodium 2-(1,3-dioxo-2,3-dihydro-1H-inden-2-yl)quinoline-6-sulfonate
Constituent 2
Reference substance name:
sodium 2-(2 3-dihydro-1 3-dioxo-1H-inden-2-yl)quinoline-6-sulphonate
IUPAC Name:
sodium 2-(2 3-dihydro-1 3-dioxo-1H-inden-2-yl)quinoline-6-sulphonate
Details on test material:
- Name of test material (as cited in study report): sodium 2-(2 3-dihydro-1 3-dioxo-1H-inden-2-yl)quinoline-6-sulphonate
- Molecular formula (if other than submission substance): C18H11NO5S.Na
- Molecular weight (if other than submission substance): 375.335 g/mol
- Substance type: Organic

Study design

Oxygen conditions:
other: estimation
Inoculum or test system:
not specified

Results and discussion

Mean total recoveryopen allclose all
Compartment:
other: water, material (mass) balance
% Recovery:
15.1
Compartment:
other: sediment, material (mass) balance
% Recovery:
0.15
% Degradationopen allclose all
% Degr.:
50
Parameter:
other: Half life
Sampling time:
900 h
% Degr.:
50
Parameter:
other: Half Life
Sampling time:
8 100 h
Half-life of parent compound / 50% disappearance time (DT50)open allclose all
Compartment:
water
DT50:
900 h
Type:
not specified
Temp.:
25 °C
Compartment:
sediment
DT50:
8 100 h
Type:
not specified
Temp.:
25 °C
Transformation products:
not specified

Any other information on results incl. tables

 

Mass Amount (percent)

Half-Life (hr)

Emissions (kg/hr)

Water

15.1

900

1000

Sediment

0.15

8100

0

 

 

Fugacity (atm)

Reaction (kg/hr)

Advection (kg/hr)

Reaction (percent)

Advection (percent)

Water

2.92e-025

588

763

19.6

25.4

Sediment

2.93e-025  

0.649

0.152

0.0216

0.00506

 

Applicant's summary and conclusion

Conclusions:
Half life period of sodium 2-(2 3-dihydro-1 3-dioxo-1H-inden-2-yl)quinoline-6-sulphonate in water is observed to be 37.5 days (900 hrs.) while in sediment it is 337.5 days (8100 hrs.). Based on these half life values of the test material, it is concluded that the chemical is not persistent in both water and sediment medium.
Executive summary:

Half life period of sodium 2-(2 3-dihydro-1 3-dioxo-1H-inden-2-yl)quinoline-6-sulphonate in water is observed to be 37.5 days (900 hrs.) while in sediment it is 337.5 days (8100 hrs.). Based on these half life values of test material, it is concluded that the chemical is not persistent in both water and sediment medium.